Couch-roll.



J. SYMONS.

00mm ROLL. APPLICATION FILED MAY 10, 1907.

902,774 7 -Patented Nov. 3', 1908.

@NKTED STATES PATENT @FlFllClE.

JOHN SYMONS, OF PHILADELPHIA, PENNSYLVANIA.

COUCH-ROLL.

To all whom it may concern:

Be it known that '1, JOHN SYMoNs, a citizen of the United States,residing at Roxborough, Philadelphia, in the county of Philadelphia andState of Pennsylvania, have invented new and useful Improvements inCouch-Rolls, of which the following is a specification.

This invention relates to couch rolls to be used in paper makingmachines. These rolls are generally in the form of brass cylinders overwhich is applied a fabric jacket, the ends of which are gathered andtied at the ends of the roll cylinder. In the operation of these devicesas heretofore constructed, the jackets must necessarily be renewed aboutevery month, thereby entailing considerable lost time as the result ofstopping the machines with a consequent loss to the manufacturer, thisexpense being in addition to the cost of the jackets.

My invention has for its objects to provide an improved form of rollwith which the use of a jacket will be unnecessary, thus to avoid theabove noted objections and expense, one which will be exceedinglydurable and which will require no attention other than to be trued in alathe about every six months.

Vith these and other objects in view, the invention comprises the novelfeatures of construction and combination of parts more fully hereinafterdescribed and claimed.

In the accompanying drawings, Figure l is a side elevation of a couchroll embodying the invention. Fig. 2 is a sectional view taken centrallyand longitudinally through the roll.

Referring to the drawings, it will be seen that the roll embodies acentral shaft or core 1 provided with a pair of diametrically opposedlongitudinally extending splines or feathers 2 and having at pointsadjacent its ends threaded portions 3 for the reception of brassconfining nuts 4 which bear at the outer faces of brass washers 5 inturn arranged to bear on the outer faces of end members or heads 6 madeof any suitable material, but preferably composed of wood. The body ofthe roll is made up of a series Specification of Letters Patent.

Application filed May 10, 1907.

Patented Nov. 3, 1908.

Serial No. 372,929.

of juxtaposed disks or washers 7 made of woolen fabric such as is nowemployed in the manufacture of the couch roll jackets above referred to,the washers or disks 7 being of circular form and provided with centralopenings to receive the shaft 1, it being understood that the openingsin the washers are notched at opposite points to accommodate the keys orfeathers 2 by means of which the washers are fixed against rotation onthe core. After the woolen washers have been prepared and applied to thecore 1, the end heads 6 are arranged in place and the roll subjected topressure in the direction of its length for pressing the washersT'firmly against each other to render the roll sufficiently compact, thebrass washers 5 being thereafter applied and the nuts l screwed onto theportions 3 for clamping the heads in place.

In the operation of the device, the use of jackets is wholly dispensedwith, while at the same time a roll having a solid woolen surface isprovided, thus to render the device efficient in action.

In order to prevent the washers from expanding, a plurality of clampingrods or bolts 8 is employed, of which there may be any desired number,which pass through the washers 5 and heads 6 and carry nuts 9 by whichthey are held in place.

What I claim is:

A couch roll comprising a core having threaded extremities andoppositely disposed longitudinal feathers, a plurality of juxtaposedwoolen fabric disks, wooden end heads engaging the opposite terminal.disks of said plurality of disks, metal washers applied against theouter faces of the heads, rods extending longitudinally through thedisks, heads and washers, and adjusting nuts engaging the threadedextremities of the core and bearing against the metal washers.

In testimony whereof, I affix my signature in presence of two witnesses.

JOHN SYMONS. Witnesses PERRY H. VAN HORN, JosErH BARTH.

